| 摘要 |
A road image drawing device including: a boundary determining unit for determining whether or not a node is located at a boundary between parcels when it is determined that the node is located at either a start point or an end point of a road; a start point, end point, and boundary road slope data acquiring unit for acquiring slope data which is calculated in advance when it is determined that the node is located at a boundary between parcels; and a drawing data processing unit for generating drawing data from both a calculated slope of the node or the slope data acquired by the start point, end point, and boundary road slope data acquiring unit, and road width data pre-stored therein, and for storing the drawing data therein.
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